Virtual WAN static routes redistribution

Azure Virtual WAN is one of the networking options offered by Azure, and routing inside of Virtual WAN has become a sort of dark art with the many supported options. Some years ago Routing Intent (also known as Routing Policies) was introduced to simplify routing, but at times you need to go back to the … Continue reading Virtual WAN static routes redistribution

Application Gateway for Containers: Web Application Firewall support (5)

This post will explore the new support in Azure Application Gateway for Containers (AGC) for Web Application Firewall (WAF) as documented in https://aka.ms/agc/waf. This blog is part of a series: Before we start, kudos need to go to the great Christof Claessens, author of this extremely useful Azure Monitor Workbook to triage WAF logs. Is WAF a big … Continue reading Application Gateway for Containers: Web Application Firewall support (5)

Going beyond 8 peers in Azure Route Server

After a good while without posting anything, I finally decided to slowly recommence again. This first post is about a little BGP trick that may help you increase the scale of Azure Route Server. Typically the maximum number of 8 BGP peers should be enough for most designs, but if you happen to need to … Continue reading Going beyond 8 peers in Azure Route Server

Azure Firewall and Service Endpoints

In my recent blog series Private Link reality bites I briefly mentioned the possibility of inspecting Service Endpoints with Azure Firewall, and many have asked for more details on that configuration. Here we go! First things first: what the heck am I talking about? Most Azure services such as Azure Storage, Azure SQL and many … Continue reading Azure Firewall and Service Endpoints

VNet Flow Logs Recipes (part 2): fine-tune your security rules

Right when VNet Flow Logs were launched I blogged about some recipes that help to extract insights out of the different information fields contained in the Flow Logs. After working with VNet Flow Logs and Traffic Analytics for a while now, I thought I could share some additional tips and tricks, this time focusing on … Continue reading VNet Flow Logs Recipes (part 2): fine-tune your security rules

Application Gateway for Containers: a not-so-gentle intro (4)

This post will explore the new support in Azure Application Gateway for Containers (AGC) for the overlay network option in Azure Kubernetes Service (AKS) as documented in https://aka.ms/agc/overlay, as well as whether you can see traffic between AGC and AKS with VNet Flow Logs. This blog is part of a series: What am I talking … Continue reading Application Gateway for Containers: a not-so-gentle intro (4)

Grafana and VNet Flow Logs

I would like to credit for this blog post to Abhishek Sharma, talking to him gave me the main inspiration for some of the concepts you are going to see below. Heartfelt thanks go as well to Niti Gupta, a kickass Microsoft engineer who can make Azure Monitor Workbooks really dance and who gave me … Continue reading Grafana and VNet Flow Logs

Azure Fleet load balancing: not what you think

Azure Kubernetes Fleet Manager is a very interesting solution that allows you to deploy code to multiple clusters at the same time. I am not going to stir up the debate here of whether this approach is better or worse than GitOps or CD pipeline parametrization, but instead I am going to look in detail … Continue reading Azure Fleet load balancing: not what you think

Application Gateway for Containers: a not-so-gentle intro (3)

This post will take you one step further from the hello-world configuration that I described in the first post by adding TLS end-to-end, a scenario described in the public docs here. This blog is part of a series: TL;DR If you don’t have much time the diagram below, which is an extended version of the … Continue reading Application Gateway for Containers: a not-so-gentle intro (3)

Application Gateway for Containers: a not-so-gentle intro (2)

Have you ever have the feeling that something that should be easy turns into a mine field when you start working on it? I seem to be a specialist in not reading the required documentation and making rookie mistakes. Fortunately, Application Gateway for Containers (AGC) offers enough troubleshooting tools so that I could identify and … Continue reading Application Gateway for Containers: a not-so-gentle intro (2)